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Finding the Fourth Proportional to 300,168.40, 450,106.80 and 166,907.20

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Solution

The fourth proportional to 300,168.40, 450,106.80 and 166,907.20 is: 250,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,168.40 : 450,106.80 = 166,907.20 : x
  2. Step 2: Convert to fraction form
    300,168.40/450,106.80 = 166,907.20/x
  3. Step 3: Cross multiply
    300,168.40x = 450,106.80 × 166,907.20
  4. Step 4: Simplify right side
    300,168.40x = 75,126,065,688.96
  5. Step 5: Solve for x
    x = 75,126,065,688.96/300,168.40
  6. Step 6: Final answer
    x = 250,279.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.